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Evidence and experts to help you understand today’s public health news—and what it means for tomorrow.

Mar 20, 2020

Why is the response to COVID-19 so much more severe than the response to other outbreaks like H1N1 or SARS? Will a vaccine be more effective than the usual flu vaccine? Has the shortage of available testing been resolved? Are we seeing more cases because of increases in transmission or testing? Why does COVID-19 cause shortness of breath? Can drinking cold water increase your risk of infection?

Jennifer Nuzzo of the Johns Hopkins Center for Health Security addresses some myths and questions submitted to

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